Pencil



PENCIL. APPLICATION FILED FEB. I3, i922.

PatentdSept. 5, 1922.;

bung, l MW Y I v NI Nwow NQM mw om. nnbh wm, NW@ mw A ww 1m Patented Sept. 5, ,1922.

RAYMOND T. BELL,- F CHIGAGO, ILLINOIS.

PENCIL.

Application tiled February 13, 1922. Serial No. 536,255.

To all whom it may concern Be it known that I, RAYMOND T. BELL, a

citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Pencils, of which the following is a specification.

This invention relates to improvements in pencils of the type in which the lead or crayon is adapted to be fed from the holder or barrel as the lead is consumed, and one of the objects of the invention is to provide an improved pencil of this character having meansy for automatically feeding the lead by a step by step movement and means whereby the feeding movement may be controlled at will.

To the attainment of these ends and the accomplishment of other -new and useful objects as will appear, the invention consists 1n the features of novelty in substantially the construction, combination and arrangement of the several parts hereinafter more fully described and claimed and shown in the accompanying drawing illustrating this invention and in which- Figure 1 is a longitudinal sectional view of a pencil constructed in accordance with the principles of this inventiomshowing the parts in one position with the lead or crayon clanped in position for use.

i showing the parts in another position and with the lead unclamped or released to per.- mit a feeding movement.

Figure 3 is an enlarged detail end view of the cap showin the portion for controlling the operation o the feeding mechanism.

Referring more particularlyl to the drawing the numeral 10 designates generally the pencil barrel, which may be of any desired size and configuration and constructed of any suitable material. The barrel is provided with a bore 11, having an enlarged portion 12, adjacent the end 13 of the bar,-

rel. Connected with the end 13 of the barrel is a tip 14, which is secured in position in any suitable manner and is rovided with a reduced extremity 15 the ree extremity of the tip being preferably provided with a slot orkerf 16, extending through the end thereof 4to produce a spring action at the end of the tip. The bore 1n the tip is in re 2is a view similar to Figure 1,`

,plunger 18.

alinement with t-he bore of the barrel 10, so 'that the lead or crayon 17 may be lfed from the barrel and throu h the tip 15.

Arranged within t e bore 11 of the barrel is a plunger 18, which is preferably provided ad`acent its upper end with a collar or shoul er 19, against one end of which a spring 2O rests, while the other end of the spring abuts the end 21 of the bore 11. Thenormal tendency of the spring 20 is to force the plunger 18 forwardly or in a direction lengthwise of the barrel to project the ex-` tremity of the lead or cra-yon through the end of the tip.

The plunger 18 1s provided with a series of spaced shoulders 22, of any desired construction but are preferablyvshaped so as to form ratchet teeth, which may extend for any desired distance lengthwise of the plunger 18.

Arranged within the enlarged portion 12 of the bore of the barrel is an escapement member 23,which may be of any desired configuration and is shaped to form pawls or teeth 24 25,-and the escapement is pivotally mounted as at 26, preferably intermediate the pawls or teeth 524-25. The end 26. of the escapement beyond the pawl or tooth 24 is shaped to form a spring portion 27, while the extremity 28 of the end 29 is shaped to form ,that as the natural tendency of the spring 20-'is to feed or move the plunger 18 forwardly the lead or crayon 1 7 will be projected through the extremity of the `t1p 15,

and therefore in order to control the extent of the feeding movement of the plunger it is only necessary to oscillate the escapement member 23 about its pivot 26, so that the teeth or pawls 24-25 thereon will be brought alternately into and out of engagement with the shoulders or teeth 22 on the Any suitable means .may be provided for oscillating the escapement about its pivot 26, butthe preferred manner of controlling this oscillatingmovement is by means of a cap 31,` which encompasses the tip 15 and is provided with atapering bore 32 adjacent its extremity. The upper end 33 of the cap 31 is'shaped to form an Y move forwardly so that the spring portion at the end of the tip 15 will release the lead or crayon 1'?, so as to permit of a feeding movement under the influence of the spring 20. i

The upper extremity of the portion 33 of the cap 31 projects over the opening 30 in the barrel 10 and is provided with a cam shaped portion or recess 38, adapted to be moved into and out of register with the opening 30 in the tip 15.

When thepcap` 31 is adjusted so-that the cam shaped portion or recess 38 therein is in register with the opening 30, the spring portion 27 of the escapement 23 by reason of `its action upon the wall of the enlarged portion 12 of the bore in the barrel will cause the escapement to rock about its pivot j 26 in a direction to move the pawl or tooth 25 away from the shoulders 22 on the plunger 18,' and will move the pawl or tooth 24 into'a-position within the path of the advancing movement of one or' the shoulders 22 to be engaged by the'latter and thereby ,arrest the movement of the plunger 18 as shown in Figure 2.

This will be accomplished when the 'cap 31 is rotated in one direction. When the capris rotated in the opposite direction so as to move` the cam or Vrecessed portion 38 out of register with the vopening 31, as shown in Figure 1, the adjacent portion of the wall of the cap will engage the extremity 28 of the portion 29 of the escapement 23 torock the escapem'ent in the opposite direction about its pivot and against the'- stress of the spring portion 27 of the escapement and will thereby move the pawl or tooth 24 out of the path of movement of the shoulders 22, and will move the pawl or tooth 25 in tothe path of movement of the shoulders to be` engaged thereby and further arrest the movement of the plunger. lt will therefore be seen that by an oscillating movement of the cap 31 first in one direction and then in the opposite direction the escapement 23 will be rocked about its pivot and an intermittent or step"`by step movement will beimparted to the plunger 18 through the medium of the spring 20.

As the cap 33 is moved in one direction to cause the cam or recessed portion 38 to move into register with the opening 30 the cap willbe moved in a direction to permit the springvextrem'ity of the tip 15 to expand and when the cap is movedin the opposite direc- 'rasante tion tomove the portion 38 out of register with the opening 30 the extremity of the tip will be caused to clamp the lead or crayon.

lf desired the upper portion of the barrel may he provided with another recess 39 for the reception of additional leads or crayons 10, and a removable cap e1 carrying an eraser 42 may be detachablyvsecured in any'- suitable manner upon the other end of the barrel.

While the preferred form of the invention has been herein shown and described it is to be understood that various changes may be made in the details of construction and in the combination and arrangement of the sever-al parte, within the scope or the claims l without departing from the spirit of this invention.

lWhat is claimed as new is 1. fr pencil embodyin a barrel, a tip connected with the barre the extremity of the tipbeing shaped to Jforrn a spring portion, a spring actuated plun er within the barrel and operating normal y to force the lead from the barrel and through-the tip, anl adjustable cap co-operating with the tip for controlling the gripping action of the.

tip upon the lead, and means .controlled by I the adjustment of said cap for controlling the feeding action of the'plunger upon the lead.

'2. A pencil embodying a barrel, a tip connected with the barrel, the said tip being shaped to form a gripping portion to grip the lead, a spring' actuated plunger operating to force the lead from the barrel and through the tip, a cap co-operating with the tip and adjustable in one direction to cause the tip to lgrip the lead and adjustable in another direction to cause the tip to release the lead, and means whereby the adjustment of the-cap in one direction will permit the said plunger tomove one step and the adjustment of the cap in the opposite direction will permit the plunger to move another step.

3. A pencil embodying a barrel, a .tip connected with the barrel, the said tip belng shaped to form a gripping portlon to grip the lead, a spring actuated plunger operating to force the lead from the barrel and through the tip, a cap (zo-operating w1th the tip and adjustable in one direction to cause the tip 4to grip thev lead and adjustable in another direction to cause the tip to release the lead, and means whereby the adjustment of the cap in one direction will permit the said plunger to move one step and the adjustment of the cap in the opposite direcfor automatically feeding the lead forward when the latter is released by the gripping means, means for controlling the said gripping means, and means responsive in its operation to the operation of the said controlling means for limiting the extent of feeding movement of the lead.

5. A pencil embodying a barrel, meansat the end of the barrel for gripping and releasing the lead, means within the barrelv for automatically feeding the lead forward when the latter is released by the gripping means, means for controlling the said gripping means, and means embodying escapement mechanism entirelv housed within the pencil and responsive in its operation to the operation of the said. controlling means for limiting the extent of feeding movement of the lead.

6. A pencil embodying a barrel, means at the end of the barrel for gripping and releasing the lead, means within the barrel for automatically feeding the lead forward when the latter is released by the gripping means, means for controlling the said grlpping means, and mechanism embodylng an escapement for limiting the extent of feeding movement of the lead, and a cam surface controlled by the third recited means and operable upon the said escapement for controlling the operation of thev la-tter.k

7 A pencil embodying a barrel, means at the end of the barrel for gripping and re- .-leasing the lead, means operating automatically to feed the lead, and means operating to control both the lead feeding and gripping means.

8. A pencil embodying a barrel, means at the end of the barrel for gripping and releasing the lead, means operating automatically to feed the lead, means for controlling the said gripping means, and means whereby the said controlling means will cause a step by step movement to be imparted to the lead feeding means.

9. A pencil embodying a barrel, means' at theend of the barrel for restraining the lead,

a spring actuated plunger for feeding the lead, spaced shoulders on the plunger, a double pawl co-operating with the shoulders for permitting a step by step feeding movement of the plunger, and means for controlling at Will the operation of the pawl.

10. A pencil embodying a barrel, means at the end of the barrel for restraining the lead, a spring actuated plunger for feeding the lead, spaced shoulders on the plunger, a double pawl co-operating with the shoulders for permitting a step by step feeding movement of the plunger, 'and means for controlling atwill the operation of the pawl, the last recited means also operating to control the said restraining means.

11. A pencil embodying a barrel, means at the end of the barrel for holding the lead against movement with relation to the barrel, a spring actuated plunger for feeding the lead, spaced shoulders onthe plunger, a

tent of feedingmovement ofthe plunger,

means for controlling the first recited means, and a cam -surface connected with the second recited means and operable to control the action of the said pawl, the said feeding means and the controlling means therefor being all housed and concealed within the pencil.

In testimony whereof I have signed my name tothis specification, on this 10th day of February, A.'D. 1922.4

- RAYMOND T. BELL. 

